Dynamic information storage or retrieval – Systems having plural physically distinct independent tracks... – Having layered storage medium
Patent
1991-06-04
1993-04-13
McElheny, Jr., Donald E.
Dynamic information storage or retrieval
Systems having plural physically distinct independent tracks...
Having layered storage medium
369112, G11B 7095
Patent
active
052028755
ABSTRACT:
An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a light transmissive medium. The data surfaces are substantially light transmissive. The optical head includes an aberration compensator to allow the head to focus onto the different data surfaces and a filter to screen out unwanted reflected light.
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Rosen Hal J.
Rubin Kurt A.
Sincerbox Glenn T.
Strand Timothy C.
Zavislan James M.
International Business Machines - Corporation
McElheny Jr. Donald E.
Millett Douglas R.
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